4 Wire – 3 Wire – 2 Wire Ultrasonic Level Transmitter
We often hear about 2 wire ultrasonic level transmitter, 4 wire ultrasonic level transmitter, etc. Ultrasonic level transmitter can be divided into two-wire system, three-wire system and four-wire system. Ultrasonic level transmitter emits ultrasonic pulses from a sensor. After the sound wave is reflected by the liquid surface, the sensor receives it. Use an overvoltage … Read more